75-52-5

  • English Name: Nitromethane
  • CAS Number: 75-52-5
  • Molecular Formula: CH₃NO₂
  • Molecular Weight: 61.04 g/mol

Physical Properties

  • Appearance: Colorless liquid.
  • Melting Point: -29°C.
  • Boiling Point: 101.2°C.
  • Density: 1.127 g/mL at 25°C.
  • Solubility: Slightly soluble in water (9.5 g/100 mL at 20°C); miscible with organic solvents like ethanol, acetone, and toluene.
  • Odor: Strong, disagreeable fruity odor.

Chemical Properties

  • Stability: Stable under normal conditions but can explode when heated under confinement.
  • Reactivity: Forms explosive mixtures with oxidizers and strong acids.

Uses

  • Chemical Synthesis: Used as a solvent and chemical intermediate.
  • Fuel: Used as a fuel additive in racing cars and model engines.
  • Explosives: Used as a component in explosive mixtures.
  • Pharmaceuticals: Used in the synthesis of pharmaceuticals.

Safety Information

  • Hazard Codes: Xn (Harmful), F (Flammable), Xi (Irritant).
  • Risk Statements: R10 (Flammable); R22 (Harmful if swallowed); R5 (Explosive).
  • Safety Statements: P201 (Obtain special instructions before use); P210 (Keep away from heat and ignition sources).
  • Transport Information: UN Number 1261, Hazard Class 3, Packing Group II.

Environmental Concerns

  • Ecotoxicity: Harmful to aquatic organisms.
  • Persistence: Not persistent in the environment.

Packing and shipping